If you’re afraid your spark plugs are not getting the current necessary to ignite the fuel in your engine, then one of these inline testers is just what you need.

Anyone looking to check the quality of their car’s spark plugs should consider getting a reliable spark tester. This is a convenient tool that gives you important current information to figure out if the spark plugs work as expected.

we’ve put together a collection of the best Spark Testers that are currently available on the market. To help you find the perfect Spark Tester among a wide variety of options, we constantly update our collection with new and trending models.

10 Best Spark Testers

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Spark Testers:

# Preview Product Price
1 Lisle 20610 Inline Spark Tester Lisle 20610 Inline Spark Tester $11.95 View Product
2 Ram-Pro Inline Spark Tester, Plug Engine Ignition Tester, 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool – for Automotive, Car, Lawnmower, Small & Big Internal/External Engines Ram-Pro Inline Spark Tester, Plug Engine Ignition Tester, 6-12 Volt Fool-Proof – Pick Up… $8.99 View Product
3 Thexton THE404 Spark Tester Thexton THE404 Spark Tester $14.99 View Product
4 【The Best Deal】OriGlam Spark Plug Tester, Adjustable Ignition System Coil Tester, Coil-on Plug Ignition Spark Circuit Tester, Autos Diagnostic Test Tool 【The Best Deal】OriGlam Spark Plug Tester, Adjustable Ignition System Coil Tester, Coil-on Plug… $9.38 View Product
5 OTC 6589 Electronic Ignition Spark Tester OTC 6589 Electronic Ignition Spark Tester $17.41 View Product
6 Echo PET4000EC Spark Tester Echo PET4000EC Spark Tester $64.93 View Product
7 Tool Aid 36350 in-Line Spark Checker Kit Tool Aid 36350 in-Line Spark Checker Kit $56.99 View Product
8 Inline Spark Plug Tester Engine Ignition Tester Straight Boot Ignition Tester Light Lawnmower Engine Checker Armature Diagnostic Detector for Automotive Car Lawnmower Internal External Engine (3) Inline Spark Plug Tester Engine Ignition Tester Straight Boot Ignition Tester Light Lawnmower Engine… $12.99 View Product
9 Lisle 20700 Coil-on Plug Spark Tester Lisle 20700 Coil-on Plug Spark Tester $15.96 View Product
10 Oregon 42-087 In Line Spark Tester,Black Oregon 42-087 In Line Spark Tester,Black $8.75 View Product

Top Rated Spark Tester Reviews

Since we’ve mentioned 10 different models of Spark Testers on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these Spark Testers below:

Sale1

Lisle 20610 Inline Spark Tester
Lisle 20610 Inline Spark Tester

$11.95
View Product
Product Highlights:

  • Gives a Visual Check of the Ignition System.
  • Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire.
  • The tool is double-ended to offer a straight boot and a 90boot on one tool. With the engine running, the tool flashes a mirror image of ignition spark.
  • Patent: 6,714,015
Sale2

Ram-Pro Inline Spark Tester, Plug Engine Ignition Tester, 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool – for Automotive, Car, Lawnmower, Small & Big Internal/External Engines
Ram-Pro Inline Spark Tester, Plug Engine Ignition Tester, 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool – for Automotive, Car, Lawnmower, Small & Big Internal/External Engines

$8.99
View Product
Product Highlights:

  • The Ram-Pro Engine Spark Tester Probe is a must have diagnostic tool for any engine with a spark plug, & can quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system
  • HOW TO USE: Simply connect the tester between the spark plug and the plug wire, if spark is being sent, the tester will mirror the spark and light up – Find dirty spark plugs, defective points, bad cables or connections, etc.
  • DIMENSIONS: 6″ boot/cable, 5″ shaft/light housing; 2.2 oz. DESIGN: Nickel Plated Shaft, Double ended flexible tool offers a straight boot -– Internal bulb lasts for years, but is replaceable through transparent housing
  • MUST HAVE: When engine won’t start, gives instant answer to ‘does it have spark?’ – Saves time, frustration and money while also offering a safe secure way to identify spark
  • USE FOR: Essential Troubleshooting for All Internal & External Combustion Engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators etc. – A must have for any individual, professional mechanic garage and auto shop
3

Thexton THE404 Spark Tester
Thexton THE404 Spark Tester

$14.99
View Product
Product Highlights:

  • package height : 11.988 cm
  • package length : 3.378 cm
  • package width : 8.483 cm
  • Product type : AUTO ACCESSORY
4

【The Best Deal】OriGlam Spark Plug Tester, Adjustable Ignition System Coil Tester, Coil-on Plug Ignition Spark Circuit Tester, Autos Diagnostic Test Tool
【The Best Deal】OriGlam Spark Plug Tester, Adjustable Ignition System Coil Tester, Coil-on Plug Ignition Spark Circuit Tester, Autos Diagnostic Test Tool

$9.38
View Product
Product Highlights:

  • √ Professional Design – According to spark color and flash over distance to determine the quality of the coil.
  • √ Great Value – Can intuitively convenient to understand the operation of the ignition coil.
  • √ Better And Faster – It is the quickest way to test for no-start conditions.
  • √ Easy To Read – High visibility white lettering makes it easy to read the gap measurement.
  • √ Perfect Selection – Screw assembly adjusts spark gap quickly and easily. Avoid fire, the ignition coil burned out and so on.
Sale5

OTC 6589 Electronic Ignition Spark Tester
OTC 6589 Electronic Ignition Spark Tester

$17.41
View Product
Product Highlights:

  • Simple, high quality tool designed to test high energy electronic ignition (HEI) systems
  • Simply attach plug wire to end then use built in clip to attach to ground
  • Tester will give you true spark performance results, helping you identify ignition anomalies that simply removing a plug and grounding it won’t reveal
  • For use on vehicles and power equipment equipped with a high energy ignition system
6

Echo PET4000EC Spark Tester
Echo PET4000EC Spark Tester

$64.93
View Product
Product Highlights:

  • Genuine OEM Echo Part
  • Replaces: 99051130023, 89780079930, 89780079931
  • Oppama PET-4000 Adjustable Gap Inline Spark Tester
  • Not only checks for spark, but has a fine adjustment to test for spark at the correct firing voltages. Each 1mm graduation on the adjustable gap represents approximately 2,000 volts in firing voltage. Can check for spark between 2KV and 25KV with ease. Checks spark while running, or not running.
7

Tool Aid 36350 in-Line Spark Checker Kit
Tool Aid 36350 in-Line Spark Checker Kit

$56.99
View Product
Product Highlights:

  • Product Type:Auto Accessory
  • Item Package Dimension:5.334 cm L X 23.114 cm W X 30.48 cm H
  • Item Package Weight:0.862 kg
  • Country Of Origin: China
8

Inline Spark Plug Tester Engine Ignition Tester Straight Boot Ignition Tester Light Lawnmower Engine Checker Armature Diagnostic Detector for Automotive Car Lawnmower Internal External Engine (3)
Inline Spark Plug Tester Engine Ignition Tester Straight Boot Ignition Tester Light Lawnmower Engine Checker Armature Diagnostic Detector for Automotive Car Lawnmower Internal External Engine (3)

$12.99
View Product
Product Highlights:

  • Diagnose misfire issues: ignition misfires can cause your engine to stumble or lose power, spark plug ignition tester can quickly and easily diagnose ignition and engine issues and defects, which is a practical diagnostic tool for any engine with a spark plug, diagnose ignition/ engine outboard motor issues or a fault in the fuel delivery system, troubleshoot spark plug connections, contact points, bad cables and more
  • Materials and dimension: the spark tester probe is made of quality plated shaft, rust and corrosion resistant, double ended flexible tool offers a straight boot, the internal bulb lasts for years, this tool measures measures approx. 11.3 inches/ 28.8 cm in length, suitable dimension to check for spark in even the hard to reach areas
  • Light indication: spark plug light checker indicates inconsistencies and sparks in a way that keeps you safe from electric currents; Intense bright white light indicates a healthy spark while jumping and dim color indicates a weak coil or plug; Remove the guesswork by using this lawn mower spark plug tester and coil pack tester, disassemble spark plug tester tool to access and replace the internal bulb
  • Simple and convenient operation: it takes about 30 seconds essential for trouble shooting all internal combustion engines, you just need to simply connect the tester between the spark plug and the plug wire, if spark is being sent, the tester will mirror the spark and light up, to find dirty spark plugs, defective points, bad cables or connections, etc.
  • Wide range of application: it fit for all 2- or 4-stroke, the essential troubleshooting for all internal and external combustion engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers and so on, this automotive spark tester tool will meet your a plenty of applications
Sale9

Lisle 20700 Coil-on Plug Spark Tester
Lisle 20700 Coil-on Plug Spark Tester

$15.96
View Product
Product Highlights:

  • Package Dimensions: 1.27 cms (L) x 1.524 cms (W) x 1.27 cms (H)
  • Product Type: Spark Plug
  • Package Quantity: 1
  • Country Of Origin: Taiwan
Sale10

Oregon 42-087 In Line Spark Tester,Black
Oregon 42-087 In Line Spark Tester,Black

$8.75
View Product
Product Highlights:

  • Oregon Spark Tester / 42-087
  • Use with engine running or just cranking

Video Overview

Spark Plug Tester

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Using an inline spark plug testing tool. This is great for testing the spark plugs on cars, trucks, motorcycles, lawnmowers etc. Thanks for watching, please …

Final Words

So, these are all of the Best Spark Testers available on the market. We hope this collection was helpful to find the right Spark Tester for the money. However, we recommend checking out the features, benefits, and problems of each of these Spark Testers before taking your decision.